76. What is a page fault?
a) an error that occurs when a program tries to access memory that it is not allowed to access
b) an error that occurs when a program tries to access a page of memory that is not currently in physical memory
c) an error that occurs when a program tries to access memory that has been corrupted
d) an error that occurs when a program tries to access memory that has been freed
77. What is a swap file?
a) a file used by the operating system to store pages of memory that have been swapped out of physical memory
b) a file used by the operating system to store backups of important system files
c) a file used by the operating system to store temporary files
d) a file used by applications to store user data
78. What is a memory dump?
a) a file that contains the contents of physical memory at a given point in time
b) a file used by the operating system to store backups of important system files
c) a file used by the operating system to store temporary files
d) a file used by applications to store user data
79. What is a memory-mapped file?
a) a file that is accessed directly from memory instead of being read from disk
b) a file used by the operating system to store backups of important system files
c) a file used by the operating system to store temporary files
d) a file used by applications to store user data
80. What is a memory barrier?
a) a hardware or software mechanism used to enforce ordering of memory operations
b) a type of memory used in virtualization
c) a type of memory corruption
d) a type of caching mechanism
